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He traveled through time and became Wu Zetian's grandson and the eldest son of His Royal Highness the Crown Prince. Didn't expect that the beginning would be a collapse of heaven? What? I'm going to be beaten to death in three days for discussing my grandma's way of playing with her face? See how the protagonist escapes and survives in the political struggle between his cousin Wu Sansi, his baby mother Shangguan Wan'er, his aunt Princess Taiping, his sister Li Guo'er, and his cousin Li Longji. Finally got the last laugh and recreated the glory of Tang Taizong and Li Shimin!

(No system + Machiavellian + Not cool writing + Not brainless + Single female protagonist) I, Qin Yi, the grandson of Qin Qiong, the Duke of Ji, defected to Junchen at the beginning, preparing to become a villain! Who told me to hear that the previous owner of this body had caused a huge disaster as soon as I traveled through time? He molested the daughter of Liang Wang Wu Sansi and the daughter-in-law of Princess Taiping Li Lingyue! I'm helpless too, right? If I don't rely on Lai Junchen to come to the public, I will die immediately. Do you know? Banban Qingshi, do you have so many loyal ministers and good generals? Being a villain is the daily life of high officials and dignitaries! In this case, let me, Qin Yan, also be a villain. See how I make waves and stir up the storm in this turbulent era!

Zhu Yunteng, a doctor of history, traveled through time. He became Zhu Yunxi, the grandson of Zhu Yuanzhang. He found that he had no system and no golden finger. He could not make gunpowder or roll a flintlock gun. He did not know martial arts and did not understand tactics. As a history student, I know the life trajectory of each of you. Can I still fail the exam with a cheat sheet?